In this study, low-voltage, printed, ion gel-based electrochromic devices (ECDs) were successfully fabricated. While conventional dispensing printing provides irregularly printed electrochromic (EC) gels, we improved the adhesion between the printed gel and the substrate by applying an external voltage. This is called electrostatic-force-assisted dispensing printing. As a result, we obtained well-defined, printed, EC gels on substrates such as indium tin oxide-coated glass. We fabricated a gel-based ECD by simply sandwiching the printed EC gel between two transparent electrodes. The resulting ECD, which required a low coloration voltage (∼0.6 V), exhibited a high coloration efficiency (η) of 161 cm/C and a large transmittance contrast (∼82%) between the bleached and colored states at -0.7 V. In addition, electrostatic-force-assisted dispensing printing was utilized to fabricate directly patterned ECDs.
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http://dx.doi.org/10.1021/acsami.7b00946 | DOI Listing |
Biofabrication
December 2024
Technical University of Darmstadt, Institute for BioMedical Printing Technology, Magdalenenstr. 2, 64289 Darmstadt, Germany.
3D-bioprinting is a promising technique to mimic the complex anatomy of natural tissues, as it comprises a precise and gentle way of placing bioinks containing cells and hydrogel. Although hydrogels expose an ideal growth environment due to their extracellular matrix (ECM)-like properties, high water amount and tissue like microstructure, they lack mechanical strength and possess a diffusion limit of a couple of hundred micrometers. Integration of electrospun fibers could hereby benefit in multiple ways, for instance by controlling mechanical characteristics, cell orientation, direction of diffusion and anisotropic swelling behavior.
View Article and Find Full Text PDFAnal Biochem
February 2025
Laboratory for Optics and Applied Mechanics, Department of Mechanical & Aerospace Engineering, Monash University, Clayton, Victoria, 3800, Australia. Electronic address:
In gel electrophoresis, samples that are dispensed too high above or too low into the wells result in sub-optimal outcomes. Here, an adapted 3D printer liquid handler equipped with an optical sensor was found to attain vertical sample delivery positionings at a standard deviation over mean ratio of 0.008.
View Article and Find Full Text PDFEur J Pharm Sci
January 2025
Pharmaceutical Sciences Laboratory, Science and Engineering, Åbo Akademi University, BioCity, Tykistökatu 6A, Turku FI-20520, Finland; CurifyLabs Oy, Salmisaarenaukio 1, Helsinki FI-00180, Finland.
The exploration of three-dimensional (3D) printing inspired technologies in pharmaceutical compounding reveals a promising frontier in personalized medicine manufacture. This study focuses on the development of clopidogrel bisulphate tablets, with doses ranging from 2 mg to 20 mg per tablet, suitable for pediatric use. The study explored a semi-solid extrusion-based deposition technology already being used in compounding pharmacies across several European locations.
View Article and Find Full Text PDFDrug Deliv Transl Res
November 2024
Centre for Research Innovation (CRI), University of Greenwich, Medway Campus, Chatham Maritime, Kent, ME4 4TB, UK.
While pharmaceutical Cocrystals have long been acknowledged as a promising method of enhancing a drugs bioavailability, they have not yet experienced widespread industrial adoption on the same scale as other multi-component drugs, such as salts and amorphous solid dispersions. This is partly due to the lack of a being no definitive screening strategy to identify suitable coformers, with the most cocrystal screening strategies heavily relying on trial and error approaches, or through utilizing a multiple and often conflicting, computational screening techniques combined with high material consumption experimental techniques. From the perspective of industry, this can often lead to high material waste and increased costs, encouraging the prioritization of more traditional bioenhancement techniques.
View Article and Find Full Text PDFCureus
October 2024
Department of Anesthesiology, Uniformed Services University of the Health Sciences, Bethesda, USA.
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